protract -
lengthen in time; cause to be or last longer; "We prolonged our stay"; "She extended her visit by another day"; "The meeting was drawn out until midnight"
lengthen become long or longer; "In Spring, the days lengthen"
extend increase in quantity or bulk by adding a cheaper substance; "stretch the soup by adding some more cream"; "extend the casserole with a little rice"
temporise,
temporize draw out a discussion or process in order to gain time; "The speaker temporized in order to delay the vote"
